The successors of the same 1.8/50mm for M42. Only use: "dressing" of the cameras for this site's photographys. The colour of the coating is different according to the period of production.
Prakticar 1.8 / 50mm
Prakticar 1.8/50mm long and short version.
I have several of them, including one, part of a set of 3 lenses, bought with an out-of-order BCA for 350 f on april 6th, 1990, another bought for 200f with an out-of-order BC-1 the same day and place and another one given by one of my customers with the Praktica B200.
"Carl Zeiss Jena" 1.8/50mm, with the Praktica BMS bought 2007/06/04.
Identical with the Prakticar (same production line). Special production for the British market (see Jenaflex). Commercial name only, the Prakticar 1.8/50 is not a Zeiss Pancolar but a Meyer Oreston!
Tests: Please note that these tests were made with the means at hand, not in a "scientific" way. See here.
Disappointing.